mirror of
https://github.com/OPM/opm-simulators.git
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134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/*
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Copyright 2014 IRIS AS
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPM_ADAPTIVESIMULATORTIMER_HEADER_INCLUDED
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#define OPM_ADAPTIVESIMULATORTIMER_HEADER_INCLUDED
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#include <cassert>
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#include <iosfwd>
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#include <vector>
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#include <limits>
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#include <algorithm>
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#include <memory>
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#include <numeric>
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#include <opm/simulators/timestepping/SimulatorTimerInterface.hpp>
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namespace Opm
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{
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/////////////////////////////////////////////////////////
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///
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/// \brief Simulation timer for adaptive time stepping
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///
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/////////////////////////////////////////////////////////
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class AdaptiveSimulatorTimer : public SimulatorTimerInterface
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{
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public:
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/// \brief constructor taking a simulator timer to determine start and end time
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/// \param timer in case of sub stepping this is the outer timer
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/// \param lastStepTaken last suggested time step
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/// \param maxTimeStep maximum time step allowed
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AdaptiveSimulatorTimer( const boost::posix_time::ptime simulation_start_time,
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const double step_length,
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const double elapsed_time,
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const double last_step_taken,
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const int report_step,
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const double max_time_step = std::numeric_limits<double>::max() );
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/// \brief advance time by currentStepLength
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AdaptiveSimulatorTimer& operator++ ();
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/// \brief advance time by currentStepLength
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void advance() override { this->operator++ (); }
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/// \brief provide and estimate for new time step size
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void provideTimeStepEstimate( const double dt_estimate );
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/// \brief Whether this is the first step
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bool initialStep () const override;
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/// \brief \copydoc SimulationTimer::currentStepNum
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int currentStepNum () const override;
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/// \brief return current report step
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int reportStepNum() const override;
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/// \brief \copydoc SimulationTimer::currentStepLength
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double currentStepLength () const override;
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// \brief Set next step length
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void setCurrentStepLength(double dt);
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/// \brief \copydoc SimulationTimer::totalTime
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double totalTime() const;
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/// \brief \copydoc SimulationTimer::simulationTimeElapsed
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double simulationTimeElapsed() const override;
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/// \brief \copydoc SimulationTimer::done
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bool done () const override;
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/// \brief return average step length used so far
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double averageStepLength() const;
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/// \brief return max step length used so far
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double maxStepLength () const;
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/// \brief return min step length used so far
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double minStepLength () const;
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/// \brief Previous step length. This is the length of the step that
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/// was taken to arrive at this time.
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double stepLengthTaken () const override;
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/// \brief report start and end time as well as used steps so far
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void report(std::ostream& os) const;
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/// \brief start date time of simulation
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boost::posix_time::ptime startDateTime() const override;
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/// \brief Return true if last time step failed
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bool lastStepFailed() const override { return last_step_failed_; }
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/// \brief tell the timestepper whether timestep failed or not
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void setLastStepFailed(bool last_step_failed) { last_step_failed_ = last_step_failed; }
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/// return copy of object
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std::unique_ptr<SimulatorTimerInterface> clone() const override;
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protected:
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std::shared_ptr<boost::posix_time::ptime> start_date_time_;
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const double start_time_;
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const double total_time_;
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const int report_step_;
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const double max_time_step_;
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double current_time_;
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double dt_;
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int current_step_;
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std::vector< double > steps_;
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bool last_step_failed_;
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};
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} // namespace Opm
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#endif // OPM_SIMULATORTIMER_HEADER_INCLUDED
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